baber/WOPTO huggingface dataset:
Patent GB-920992-A (GB)
Title: Improvements in propulsion and steering of engine driven boats or other marine craft
Inventor: O'SULLIVAN DANIEL JAMES
IPC: B63H11/00
Filed: 1960-08-05
Abstract: 920,992. Hydraulic jet propulsion apparatus. DOWTY ELECTRICS Ltd. Aug. 3, 1961 [Aug. 5, 1960], No. 27248/60. Addition to 913,953. Class 114. Apparatus according to the parent Specificacation comprises a substantially rectangular cross-sectional duct 23, the trailing edges of the two opposite sides of which conform to part of a circle, and a reversing deflector 28 which conforms to part of a cylinder which is pivotally mounted about an axis 29, which lies parallel to but is offset from the axis of generation of the cylindrical surface, so that in operative position the deflector lies closely adjacent the trailing edges but as it moves from this position to its inoperative position the distance between the edges and the deflector increase in amount so that any lodged foreign particles are freed.
Patent GB-607787-A (GB)
Title: Improvements in and relating to the concentration or thickening of liquids containing solid matter in suspension
IPC: B04C5/02
Filed: 1945-10-17
Abstract: The concentration or thickening of liquids containing solid matter in suspension is carried out in a cyclone separator having a conical chamber whose apex angle is not less than 15 degrees nor more than 25 degrees.  The conical chamber may have inwardly convexed sides the mean angle of taper being within these limits. Specifications 172,150, [Class 23], 607,777, 607,784, 607,786 and 607,788 are referred to.
Patent GB-329927-A (GB)
Title: Improvements in spark arresters for locomotives
IPC: F23J15/02
Filed: 1929-09-09
Abstract: 329,927. Carpenter, G. Sept. 9, 1929. Baffles; ashes &c., collecting and removing.- A spark-arrester for locomotives comprises an annular chamber formed by inner and outer cylinders 18, 19 arranged between vertical partitions 14, 16 extending across the smokebox beneath the stack 12 to which exhaust steam is supplied by a pipe 13 projecting through a horizontal partition 15. The gases from the smoke tubes 10 pass through a helical passage formed by a helical member arranged in the annular chamber and solid matter is separated by centrifugal force assisted by baffles 20 and discharged through openings 21 into the chamber 17 from which they are removed through a door 22. Specification 240,030 is referred to.
Patent GB-683281-A (GB)
Title: Improvements in or relating to electric cooking devices
IPC: A47J37/01
Filed: 1947-10-14
Abstract: 683,281. Electrically heated cooking vessels. C. R. V. T. C., Ltd., and BOLSOM, M. Oct. 14, 1947, No. 27558/47. Class 39(iii) [Also in Group XVII] The lid 4 of a cooking vessel 1 has a projecting peripheral hollow flange 10 which houses an electric resistance 11 and is formed to fit in close contact against the inside wall of an enlarged upper part 2 of the vessel. The flange 10 is also formed to fit over the base of the vessel in surface contact with a circumferenetial strip thereof. The lid carries a handle 15 and window 14 and is in two parts 8, 9 spun together to form the hollow flange. The resistance 11 is covered with fireclay or insulating beads and is connected to a socket connections 12 in the lid. When inverted, the lid rests on the handle 15 and socket 12. The walls of the vessel taper to the base, which may normally rest on a cross strip support 5.
Patent GB-158669-A (GB)
Title: Improvements in train control systems
IPC: B61L3/10
Filed: 1919-11-07
Abstract: 158,669. Haddan, R., (Regan, J. B.). Nov. 7, 1919. Fluid-pressure.-In a system of the intermittent ramp type, the brakes are applied when a signal at danger is passed, and are released by a speed controlled contact when the speed has fallen to a predetermined value. The engine apparatus comprises shoes S, S<1>, Fig. 2, either of which, on making contact with a track ramp 12 breaks the circuit of a stick relay R, if the ramp is de-energized. that is if it is in the danger condition. The relay R when deenergized, breaks the circuit of electromagnets A, B<1>, controlling a valve 31 which vents a brake pipe 30, and a valve 32 which isolates the brake pipe from a reservoir 33. A switch may be provided situated in such a position that the engineman must alight to operate it in order to reset the relay R after an application of the brakes. If the line is clear, the control relay D is energized, a battery B<2> energizes the ramp 12, and current flows through shoe S', springs 10 maintaining the relay R in the energized condition during the rise of the shoe S<1>. A speedometer contact 19 completes the brake circuit when the speed of the train falls to a predetermined value after passing a danger ramp. Relays 160 and 17 are provided to indicate a break in the ramp, and to control the appropriate signals on the breakage of the ramp. respectively. Magnet A, Fig. 4, when energized raises the valves 15<1>, 17<1> allowing the air from the brake pipe 30 to raise a piston 13<1> which closes a valve 11<1>. On de-energizing magnet A, the valves 15<1>, 17<1> cut off the air from the piston 13', when the valve 11<1> opens and allows the pressure to escape from the brake-pipe 30 through chamber 5<1>, hollow bush 7', orifice 8<1> and pipe E to atmosphere, air escaping from the underside of the piston 13<1> by a pipe 19<1>. Magnet B<1>, Fig. 5, when energized raises the valves C<1>, D<1>; the piston F' raises the valve b, and air from the reservoir 33 passes through an orifice 7<a> to the brake-pipe 61. When magnet B<1> is de-energized, the valves C<1>, D<1> fall, releasing the pressure from the piston F<1> through a pipe 14<a>, and cutting off the air from the reservoir 33, when the valve b closes under the influence of the brakepipe pressure on a piston E<1>, and the air is cut off from the brake-pipe. Cocks 36, Fig. 5, and 37, Fig. 4, render the apparatus inoperative when it is not required.
Patent GB-1513019-A (GB)
Title: Electrical storage batteries and methods of making them
IPC: H01M4/22
Filed: 1975-07-01
Abstract: 1513019 Making storage batteries GOULD Inc 1 July 1975 [8 July 1974 18 June 1975] 27643/75 Heading H1B A water-activatable Pb-acid storage battery is manufactured by a process which comprises the steps of (a) forming the battery plates, (b) deep discharging the plates, and (c) reducing the amount of electrolyte contained in the plates to within the range of 10% by volume (of the total electrolyte capable of being added to the assembled battery) to the amount of electrolyte retained by the saturated plates, whereby the amount of sulphate resulting from step (b) and the residual H2SO4 electrolyte retained within the plates combine, on the addition of water and charging, to yield an end-of-charge electrolyte having an acceptable specific gravity. Step (a) may be carried out using a high specific gravity formation electrolyte so as to ensure the final acceptable specific gravity, or the plates may be brought into contact with a "development electrolyte", before or after step (b), to increase the specific gravity of the residual electrolyte retained in the plates. The battery plates may be brought into contact with a conditioning amount of metallic (e.g. sodium) sulphate to enhance the shelf life and the ability of the battery to accept the reuuired charge after water addition. The amount of electrolyte may be reduced by step (c) to the amount retained by the plates merely by inverting the battery, it may be reduced to less than this by centrifuging.
Patent GB-261174-A (GB)
Title: A new or improved method of and means for mixing and soaking grog and marl for use in the manufacture of saggers, blocks, or slabs and other articles
IPC: B28C1/12
Filed: 1925-11-04
Abstract: 261,174. Wilkinson, S., and Wilkinson, J. Nov. 4, 1925. Making bricks; potting materials.-Grog and marl are mixed and moistened to form a mixture for making saggers, blocks and slabs, by delivering the ingredients in predetermined quantities to a bucket elevator a which supplies a shoot b with a hinged delivery-plate that can be set at will to deliver to either of the mixing worms c', c<2> working in the trough d. Holes at each end of the trough lead to hinged or flexible tubes f which are moved to spread the material in a thin layer over the prepared areas R, S, T. U. The tubes may carry spraying-apparatus to moisten the mixture during the laying-process.
Patent GB-452819-A (GB)
Title: Process and device for treating with liquids, textiles yarns in cake or coreless spool form
IPC: D01D10/04
Filed: 1935-10-08
Abstract: Spools or cakes of textile yarns 3, Fig. 2, are slipped, for liquid treatment, on a support 4 such as that described in Specification 427,953, through which is threaded a central stem or rod 8 by which upper and lower discs 6, 7 may be drawn together, as by a nut 9, the lower disc 7 having apertures 12 for the passage of a liquid around the rod 8.  The internal diameter <PICT:0452819/IV/1> <PICT:0452819/IV/2> of the cakes is larger than the external diameter of the support. When a series of spools or cakes are to receive treatment, the central support, on which the upper and lower discs 6, 7 are mounted, is in the form of a perforated tube 20, Fig. 3, the upper end of which is terminated by a solid rod 8 of smaller diameter. In this case, the treating liquid passes through the perforations in the tube 20, discs 18 with circular rims 19 being placed between successive spools to prevent the escape of the treating liquor.
Patent GB-681247-A (GB)
Title: Improvements in refractory steels or alloys resisting high temperatures, chiefly forgas turbines
IPC: C22C38/52
Filed: 1948-10-25
Abstract: A steel which will resist creep, and is particularly applicable for the manufacture of parts of gas turbines, has the following composition:-C 0.1-0.6 per cent; Si 0.5-2.5 per cent; Cr 14.0-25.0 per cent; Ni 7.0-25.0 per cent; W 5.1-15.0 per cent; Co 4.0-25.0 per cent; Ti 0-2.5 per cent; one or both of Nb and Ta 0-2.5 per cent; Fe and impurities the balance; and is subjected to thermal treatment comprising a heating between 855 DEG C and 1300 DEG C.  Steels having the composition specified in the parent Specification may also be subjected to this heat treatment.  The treatment may be at 1100 DEG C-1300 DEG C for 1/2 to 2 hours followed by slow or quick cooling or alternatively it may comprise two consecutive heatings at the high temperature each followed by slow or quick cooling and the cooling after the last heating may be followed by annealing at 850-950 DEG C for 4-8 hours. Thus treatment may comprise the following series of operations, heating for 1 hour at 1150 DEG C, cooling in air or water, heating for 1/2 -1 hour at 1175 DEG  C or 1200 DEG C cooling in air, and finally annealing at 900-925 for 6 hours.
Patent GB-929868-A (GB)
Title: Improvements relating to electronic circuit arrangements
Inventor: CONNETT JACK
IPC: G11C19/28
Filed: 1960-08-10
Abstract: 929,868. Tunnel diode multistable circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Aug. 3, 1961 [Aug. 10, 1960], No. 27734/60. Class 40 (6). [Also in Group XIX] A shift register uses tunnel diodes TD, TD<SP>1</SP> in constant-current circuits as bit storage elements, the voltage across each element being stored across a capacitor C1, C1<SP>1</SP> so that when each stage is reset the data can be stepped along by immediately afterwards pulsing a shift line to set subsequent stages through diodes D1, D1<SP>1</SP>. The shift pulses may be derived from the reset pulses by gating the overshoot of the latter when obtained from a transformer source.
Patent GB-926061-A (GB)
Title: Clothes drier control system
Inventor: GENBAUFFE FRANCIS SIMON
IPC: D06F58/38
Filed: 1959-08-13
Abstract: 926,061. Thermal switches. ROBERTSHAW-FULTON CONTROLS CO. Aug. 13, 1959 [Nov. 12, 1958], No. 27738/59. Class 38 (5). [Also in Groups XIII and XXIX] An automatic clothes-drier (see Group XIII) is provided with a temperature-controlled switch for an air heater and with a control switch which is also temperature-controlled and which embodies a time-delay mechanism. The temperature-controlled switch, Fig. 4, comprises a temperature-sensitive bulb 46 which, on rising temperature, actuates an expansible element 80, whereby lever 128, pivoted at 126, is depressed against spring 130, so raising bi-metallic strip 134 until roll-over spring 136 causes spring arm 124 and contact 122 to snap down. This interrupts current from supply 116 to terminal 112 connected to the air heater, and supplies current to heater 138 which acts on the bi-metallic strip to restore the parts to the position shown and again switch on the air heater. This cycling action continues until prolonged heating of the bi-metallic strip 134 is ineffective to snap-up arm 124 to switch on the air heater. The control switch, Fig. 5, comprises a rod 180 which is pushed in manually against spring 192 to initiate operation, and is held in by detent 176 engaging projection 186. This closes contacts 198 and 200 to start a fan motor and air heater. The heated inlet air acts on a temperature-sensitive bulb (not shown) which causes expansible element 154 to displace member 156 and rod 166 to the right against the pull of spring 168. This raises the end of rod 166 off the stop 146, raises spring arm 170 (fixed at 163) which causes a roller-over spring to snap down spring arm 174 (also fixed at 163). Thus detent 176 is withdrawn from engagement with projection 186, whereupon spring 192 displaces rod 180 until the next projection 188 engages detent 172, now raised. When the inlet air temprature falls to the predetermined figure, pressure drops in the temperature-sensitive bulb, whereupon spring arms 170 and 174 revert to the positions shown and rod 180 moves one step more to the left; current then passes through contacts 218 and heater 56 which warms up the temperaturesensitive bulb again until the spring arms 170 and 174 snap-over and rod 180 moves another step to the left and heater 56 is switched off. The step-by-step action of rod 180 continues according to the number of projections provided thereon, the number depending on the delay time desired, during which time the drier continues to run with hot air passing through. Eventually, when rod 180 nears the end of its travel, contacts 200 are broken, which switches-off the inlet-air heater, whilst the motor and fan continue to rotate so that cool air is blown through, and finally contacts 198 are broken to stop the motor.
Patent GB-686807-A (GB)
Title: Improvements in and relating to blades for compressors and the like
Inventor: FORSLING BENGT ERIK GUSTAF
IPC: F01D5/14
Filed: 1950-11-14
Abstract: 686,807. Making turbine blades. BRITISH THOMSON-HOUSTON CO., Ltd., and FORSLING, B. E. G. Aug. 13, 1951 [Nov. 14, 1950], No. 27818/50. Class 83 (ii). [Also in Group XXVI] A method of making a rotor blade for an axial flow compressor or turbine comprises machining the two surfaces of the blade to a cylindrical contour, each surface being inclined relatively to the other so that the thickness decreases from the root to the tip and the chord width and the camber angle of the blade profile are also reduced from the root to the tip, the blade after machining being twisted so that the desired chord angle is obtained at all radii. The concave surface of the blade is formed by machining a flat plane E, F, H, G on the underside of the blade said plane being slightly inclined towards the convex upper surface of the blade so that the thickness of the leading and trailing edges of the blade remains constant or slightly decreasing from the root to the tip. The blade is next hollowed out on the flat machined underside to the line I, U, K at the root profile and L, V, M at the tip profile leaving small flat portions E, I, L, G at the inlet edge and K, F, H, M at the trailing edge. The flat portions ensure that the position of the chord relative to the blade profile is not altered by the removal of sharp corners after machining. Measurement of the blade twist is facilitated by using a straight edge along these flats. The contour of the convex surface may be made up from two or more circular arcs. After machining the blade by planing or cam-milling and boring, the corners are rounded off to form the blade profile and the blade is twisted by pressing between dies shaped to fit the blade. The blades are preferably twisted cold and heat treated afterwards to relieve internal stresses, the amount of twist being such that the centres of gravity of the blade sections, after twisting, remain approximately on the same radial line.
Patent GB-1078683-A (GB)
Title: Catalysis apparatus
IPC: B01D37/00
Filed: 1964-07-07
Abstract: An apparatus for catalytic reactions in a flow of gaseous material includes means for producing a radially inwards flowing free spiral vortex comprising a spiral or cylindrical chamber (3), Figs. 1 and 2 (not shown), formed with a tangential entry orifice (7) and with a circular exit orifice (the open top of a vertical cylinder (12) below it), the means also comprising a straight passage of circular cross-section (namely the cylinder (12)) forming an extension of the exit orifice, the wall of the cylinder being over at least some of its length pervious to the fluid forming the vortex, the wall also incorporating, or being adapted to act as a support for, a catalyst, and being disposed in a chamber (2) which is formed with an exit orifice (11) and which communicates with the passage only via the cylinder wall. The wall may be of platinum cloth or sponge, and it may include resistance bars for electric heating, (Fig. 4, not shown). Alternatively, the wall may be heated by a burner, (Fig. 6, not shown).  Preferably a duct (18), (Fig. 1, not shown) extending downwards through chamber (3) to near the top of cylinder (12) is provided for introduction of a further fluid or particulate solid to take part in catalytic reactions; alternatively, two further fluids may be introduced in this manner through concentric ducts (29, 30), Fig. 5 (not shown).
Patent GB-408638-A (GB)
Title: Improvements in or relating to the production of aromatic thio-acyl-amides
Filed: 1932-10-06
Abstract: Aromatic thioacylamides wherein the acyl group is aliphatic are prepared by treating in the absence of water the acyl derivative of an aromatic amine with a phosphorus halogen compound wherein the phosphorus is pentavalent, and treating the products without isolation with hydrogen sulphide in the presence of an inert solvent to form the corresponding thioacylamides.  Suitable inert solvents are ether, benzene, carbon tetrachloride or chloroform, and the treatment with hydrogen sulphide is advantageously carried out with cooling of the reaction mixture.  When the starting materials contain other reactive groups such as hydroxy or amino these are first protected by treatment with a toluenesulphonamide. In examples, the following acylamides are converted to thioacylamides by treatment with phosphorus pentachloride followed by hydrogen sulphide, the inert solvent being benzene and cooling of the reaction mixture being specified in some cases:--phenacetin, acetyl-p-anisidine, acetyl-o-toluidide, acetyl-m-xylidine, acetamidohydroquinone dimethylether (reduction and acetylation of nitrohydroquinone dimethylether), 5-acetylaminotrimethylpyrogallol, m-nitroacetanilide, 1.3- and 1.4-diacetylphenylenediamines, diacetylbenzidine, propionanilide, 2-acetylnaphthylamine, 4-acetylamino-1-methyl-naphthylamine, 4-acetylaminonaphthyl-methyl-and ethyl-ethers, 1-acetylamino-2-naphthyl ethyl ether, 2-acetylaminofluorene, 2-acetylaminodiphenyleneoxide, 5 - acetylaminoacenaphthene.  The conversion of acetyl - o - anisidine, acetylaminophenanthrene, and 1-alkoxy - 2 - acetylaminonaphthalene is also mentioned.  The products are useful for conversion to thiazole and thence to cyanine dyes Specifications 322,184, [Class 2 (iii)], and 351,557 are referred to.
Patent GB-360571-A (GB)
Title: Improvements relating to electrical heating apparatus
IPC: F24H3/00
Filed: 1930-09-18
Abstract: 360,571. Heating by electricity. JACKSON, R. A., 598, Maryhill Road, Glasgow, Sept. 18, 1930, No. 27874. [Class 39 (iii).] An ornamental grating 1 is hingedly mounted ' in register with a cavity 2 in a wall or floor, and carries electric heating units 4 which will normally lie within the cavity. In a modification the grating is mounted on a box-like frame which is-'sunk in the cavity. Locking-bolts may be fitted to the grating. The cavity may be a ventilating opening.
Patent GB-225548-A (GB)
Title: Improvements in mechanical salt-cake furnaces
IPC: C01D5/02
Filed: 1924-11-24
Abstract: 225,548. Farbwerke vorm. Meister, Lucius, & Br³ning. Nov. 29, 1923, [Convention date]. Chemical manufacture, furnaces for. - In a mechanical furnace for use in the manufacture of salt cake by a one stage process, the muffle is made of a refractory acid-resisting brick or stone material. The furnace may be fired by a mixture of producer and water gas, and the waste heat of the combustion products may be used for preheating air and for generating steam for the water-gas plant. Specification 10812/84 is referred to.
Patent GB-227954-A (GB)
Title: Improvements in apparatus for the coating of confections
IPC: A23G3/22
Filed: 1923-11-10
Abstract: 227,954. Baker Perkins, Ltd., (formerly Baker, Sons, & Perkins, Ltd., J.), Baker, G. R., and Head, R. Nov. 10, 1923. Coating confectioners' goods.-In confectionery coating machines of the type wherein the cores are placed in a falling stream of coating-material, the air is expelled from the material, immediately prior to its application to the cores, by means which impart rapid vibrations or oscillations to the material. The invention is particularly applicable to the machines described in Specifications 142,935 and 204,252. In Fig. 1, a machine of the type described in Specification 204,252 is shown, the material being delivered from the mixing-vessel b, in which it is caused to take a circuitous path by a baffle c, on to one or more inclined plates c, e' which are secured to a cross frame e<3> adjustably secured by nuts e<1> on a vertically movable rod f. The rod f carries a yoke f<4> which is vibrated by a ratchet. toothed cam g acting on a projection f<2>. The amount of vibration is adjusted by a screw f<3>. The vibrating plates may be provided with ribs or projections. In Fig. 3, the materials flows from the mixer b into a distributing vessel h in which are positioned one or more vibrating surfaces h<1> arranged either annularly or as flat plates inclined conically towards the outlet h<2>. The upper edges of the plates are at about the same level as the lip b<3>, and the plates are carried by arms j connected to the spring-depressed, camoperated yoke j<2>. The outlet h<2> is adjusted by a screw h<5> contacting with a pivoted wall h<3>, and a plate i supported and adjusted by screwed reds i<1>, i<2> further regulates the opening and divides the falling material into two streams which may be varied by tilting the plate i. The baffle c in the mixer b may be vibrated or oscillated rapidly. The rod d<1>, pressed downwardly by a spring d<2>, bears on a bell crank d<3> carrying the convevertensioning roller d<4>.